US Patent:
20190290189, Sep 26, 2019
Inventors:
- Los Angeles CA, US
- Oakland CA, US
Alireza MEHRNIA - Los Angeles CA, US
Frank WANG - Cupertino CA, US
Michael FLESCH - Beverly Hills CA, US
Joseph BOYSTAK - Marina Del Rey CA, US
Yeung LAM - Sherman Oaks CA, US
Assignee:
BRUIN BIOMETRICS, LLC - Los Angeles CA
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA
International Classification:
A61B 5/00
A61B 5/053
A61B 5/05
Abstract:
A handheld, conforming capacitive sensing apparatus configured to measure Sub-Epidermal Moisture (SEM) as a mean to detect and monitor the formation of pressure ulcers. The device incorporates an array of electrodes which are excited to measure and scan SEM in a programmable and multiplexed manner by a battery-less RF-powered chip. The scanning operation is initiated by an interrogator which excites a coil embedded in the apparatus and provides the needed energy burst to support the scanning/reading operation. Each electrode measures the equivalent sub-epidermal capacitance corresponding and representing the moisture content.